fix: Percent encode for Hugging Face paths

[nameexhaustion]

This allows us to scan paths with special characters from Hugging Face (e.g. datetime-partitioned hive data)

[codecov]

Codecov Report

Attention: Patch coverage is 5.88235% with 16 lines in your changes missing coverage. Please review.

Project coverage is 80.39%. Comparing base (235cad3) to head (72da014).
Report is 4 commits behind head on main.

Files	Patch %	Lines
crates/polars-io/src/path_utils/hugging_face.rs	0.00%	16 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #17718      +/-   ##
==========================================
+ Coverage   80.37%   80.39%   +0.02%     
==========================================
  Files        1500     1500              
  Lines      196605   196619      +14     
  Branches     2793     2793              
==========================================
+ Hits       158016   158077      +61     
+ Misses      38076    38029      -47     
  Partials      513      513              

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